const ThemeColorReplacer = require('webpack-theme-color-replacer');
const generate = require('@ant-design/colors/lib/generate').default;

const getAntdSerials = (color) => {
  // 淡化（即less的tint）
  const lightens = new Array(9).fill().map((t, i) => {
    return ThemeColorReplacer.varyColor.lighten(color, i / 10);
  });
  const colorPalettes = generate(color);
  const rgb = ThemeColorReplacer.varyColor.toNum3(color.replace('#', '')).join(',');
  return lightens.concat(colorPalettes).concat(rgb);
};

const themePluginOption = {
  fileName: 'css/theme-colors-[contenthash:8].css',
  matchColors: getAntdSerials('#1890ff'), // 主色系列
  // 改变样式选择器，解决样式覆盖问题
  changeSelector (selector) {
    switch (selector) {
    case '.ant-calendar-today .ant-calendar-date':
      return ':not(.ant-calendar-selected-date):not(.ant-calendar-selected-day)' + selector;
    case '.ant-btn:focus,.ant-btn:hover':
      return '.ant-btn:focus:not(.ant-btn-primary):not(.ant-btn-danger),.ant-btn:hover:not(.ant-btn-primary):not(.ant-btn-danger)';
    case '.ant-btn.active,.ant-btn:active':
      return '.ant-btn.active:not(.ant-btn-primary):not(.ant-btn-danger),.ant-btn:active:not(.ant-btn-primary):not(.ant-btn-danger)';
    case '.ant-steps-item-process .ant-steps-item-icon > .ant-steps-icon':
    case '.ant-steps-item-process .ant-steps-item-icon>.ant-steps-icon':
      return ':not(.ant-steps-item-process)' + selector;
    case '.ant-menu-horizontal>.ant-menu-item-active,.ant-menu-horizontal>.ant-menu-item-open,.ant-menu-horizontal>.ant-menu-item-selected,.ant-menu-horizontal>.ant-menu-item:hover,.ant-menu-horizontal>.ant-menu-submenu-active,.ant-menu-horizontal>.ant-menu-submenu-open,.ant-menu-horizontal>.ant-menu-submenu-selected,.ant-menu-horizontal>.ant-menu-submenu:hover':
    case '.ant-menu-horizontal > .ant-menu-item-active,.ant-menu-horizontal > .ant-menu-item-open,.ant-menu-horizontal > .ant-menu-item-selected,.ant-menu-horizontal > .ant-menu-item:hover,.ant-menu-horizontal > .ant-menu-submenu-active,.ant-menu-horizontal > .ant-menu-submenu-open,.ant-menu-horizontal > .ant-menu-submenu-selected,.ant-menu-horizontal > .ant-menu-submenu:hover':
      return '.ant-menu-horizontal > .ant-menu-item-active,.ant-menu-horizontal > .ant-menu-item-open,.ant-menu-horizontal > .ant-menu-item-selected,.ant-menu-horizontal:not(.ant-menu-dark) > .ant-menu-item:hover,.ant-menu-horizontal > .ant-menu-submenu-active,.ant-menu-horizontal > .ant-menu-submenu-open,.ant-menu-horizontal:not(.ant-menu-dark) > .ant-menu-submenu-selected,.ant-menu-horizontal:not(.ant-menu-dark) > .ant-menu-submenu:hover';
    case '.ant-menu-horizontal > .ant-menu-item-selected > a':
    case '.ant-menu-horizontal>.ant-menu-item-selected>a':
      return '.ant-menu-horizontal:not(ant-menu-light):not(.ant-menu-dark) > .ant-menu-item-selected > a';
    case '.ant-menu-horizontal > .ant-menu-item > a:hover':
    case '.ant-menu-horizontal>.ant-menu-item>a:hover':
      return '.ant-menu-horizontal:not(ant-menu-light):not(.ant-menu-dark) > .ant-menu-item > a:hover';
    default :
      return selector;
    }
  }
};

const createThemeColorReplacerPlugin = () => new ThemeColorReplacer(themePluginOption);

module.exports = createThemeColorReplacerPlugin;
